CVE-2022-23959
varnish - security update
9.1
CRITICAL
CVSS 3.1
EPSS 0.34%
Description
In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.
How to fix CVE-2022-23959
To remediate CVE-2022-23959, upgrade the affected package to a fixed version below.
- Alpine/varnish—upgrade to 6.5.2-r1 or later
- —upgrade to 7.0.2 or later
- —upgrade to 6.5.1-1+deb11u2 or later
- —upgrade to 5.0.0-7+deb9u3 or later
Is CVE-2022-23959 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 6.5.2-r1
- >= 7.0.0, < 7.0.2
- from 0, < 6.5.1-1+deb11u2
- from 0, < 5.0.0-7+deb9u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |